Update.cvs/libc-ud-970612

<1997-06-12 21:22  Ulrich Drepper  <drepper@cygnus.com>

	* Makefile (libc-map): Define before including Makerules.
	* Makerules (lib%.so): Depend on $(lib%-map).
	(build-shlib): Adapt rule for above change.
	(libc.so): Depend on $(libc-map).
	* db/Makefile (libcdb-map): New definition.
	* elf/Makefile (libdl-map): New definition.
	* elf/dl-lookup.c: Don't use relative include path.
	(undefined_msg): New variable.  Use single string in all functions.
	(do_lookup): Correctly recognize default version.
	Return -2 if no version information is available.
	Stop processing hash entries when string was found.
	Don't bark about missing versioned symbol in file with original
	reference if it is a weak symbol.
	(_dl_lookup_symbol): Use undefined_msg.
	(_dl_lookup_versioned_symbol): Likewise.
	Give extra information if no verdef info is available.
	* elf/dl-version.c (file_needed): Remove first argument.  We must
	seek in the whole search list.
	(match_symbol): Correct check for available verdef info.
	(_dl_check_map_versions): Correct call of find_needed.
	* locale/Makefile (libBrokenLocale-map): New definition.
	* login/Makefile (libutil-map): New definition.
	* math/Makefile (libm-map): New definition.
	* md5-crypt/Makefile (libcrypt-map): New definition.
	* nis/Makefile (libnsl-map, libnss_compat-map, libnss_nis-map,
	libnss_nisplus-map): New definition.
	* nss/Makefile (libnss_files-map, libnss_db-map): New definitions.
	* resolv/Makefile (libresolv-map, libnss_dns-map): New definitions.
	* libc.map: New file.
	* db/libdb.map: New file.
	* elf/libdl.map: New file.
	* locale/libBrokenLocale.map: New file.
	* login/libutil.map: New file.
	* math/libm.map: New file.
	* md5-crypt/libcrypt.map: New file.
	* nis/libnss_compat.map: New file.
	* nis/libnsl.map: New file.
	* nis/libnss_nis.map: New file.
	* nis/libnss_nisplus.map: New file.
	* nss/libnss_files.map: New file.
	* nss/libnss_db.map: New file.
	* resolv/libnss_dns.map: New file.
	* resolv/libresolv.map: New file.

	* sysdeps/i386/dl-machine.h (elf_machine_rel): Don't do anything
	for R_386_NONE entries.

	* Makefile (manual/dir-add.info): New rule.

	* Makerules: Add vpath definition for .x files.

	* Makerules (distinfo): Make sure target directory exists.

	* argp/argp-help.c (argp_args_usage): Don't modify `fdoc' value
	since it is used to distinguish filtered strings from unmodifed
	strings.

	* elf/dl-lookup.c (do_lookup): Optimize STT_* recognition.
	* elf/dl-reloc.c: Fix typo.

	* inet/arpa/tftp.h (struct tftphdr): Change type of tu_block to
	`unsigned short'.

	* manual/Makefile (dir-add.texi): Also emit wrapper text for
	info/install-info.
	(distribute): Add dir-add.texi and dir-add.info.
	(mostlyclean): Add dir-add.info.
	(realclean): Add dir-add.texi.
	(install): Add entries in `dir' file using install-info.

	* manual/libc.texinfo: Add @dircategory and @direntry text.
	Reported by Miles Bader <miles@gnu.ai.mit.edu>.

	* manual/pattern.texi: Correct description of GLOB_MAGCHAR and
	GLOB_NOMAGIC.  Changes by Roland McGrath <roland@gnu.ai.mit.edu>.

	* nis/nis_addmember.c: Little optimizations.
	* nis/nis_call.c: Likewise.
	* nis/nis_creategroup.c: Likewise.
	* nis/nis_defaults.c: Likewise.
	* nis/nis_destroygroup.c: Likewise.
	* nis/nis_ismember.c: Likewise.
	* nis/nis_local_names.c: Likewise.
	* nis/nis_print_group_entry.c: Likewise.
	* nis/nis_verifygroup.c: Likewise.

	* posix/unistd.h: Fix comment for getcwd.

	* stdlib/Makefile (headers): Remove inttypes.h.  It's a system
	dependent header.
	* sysdeps/wordsize-32/Dist: New file.
	* sysdeps/wordsize-32/Makefile: New file.
	* sysdeps/wordsize-64/Dist: New file.
	* sysdeps/wordsize-64/Makefile: New file.

	* sunrpc/Makefile: Adopt comment for real situation.

	* sysdeps/i386/add_n.S: Add ASM_TYPE_DIRECTIVE and AS_SIZE_DIRECTIVE.
	* sysdeps/i386/addmul_1.s: Likewise.
	* sysdeps/i386/lshist.s: Likewise.
	* sysdeps/i386/rshift.s: Likewise.
	* sysdeps/i386/sub_n.s: Likewise.
	* sysdeps/i386/submul_1.s: Likewise.

	* sysdeps/unix/sysv/linux/i386/sysdep.h (SYSCALL_ERROR_HANDLER):
	Add .type and .size.

1997-06-12 13:32  Philip Blundell  <Philip.Blundell@pobox.com>

	* libc/sysdeps/unix/arm/brk.S: New file.
	* libc/sysdeps/unix/arm/sysdep.S: Likewise.
	* libc/sysdeps/unix/sysv/linux/arm/sysdep.S: Likewise.

1997-06-11 11:51  Thorsten Kukuk  <kukuk@vt.uni-paderborn.de>

	* nis/nss_nisplus/nisplus-spwd.c (_nss_nisplus_parse_spent):
	Check if we have shadow information.

1997-06-08 19:33  Thorsten Kukuk  <kukuk@vt.uni-paderborn.de>

	* nis/nis_getservlist.c (nis_getservlist): Use calloc instead of
	malloc, alloc memory for nis_server struct.
	* nis/nis_getservlist.c (nis_freeservlist): Give the memory for
	the nis_server struct free, too.

	* nis/nis_removemember (nis_removemember): Fix for loop.

1997-06-12 12:45  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/i386/fpu/__math.h (__M_SQRT2): Define here since we
	cannot rely on M_SQRT2 being defined.  (log1p): Use __M_SQRT2 not
	M_SQRT2.
	* math/math.h (_Mldbl): Define even if M_* constants are not
	defined.
	Reported by corsepiu@faw.uni-ulm.de.

1997-06-12 03:08  Philip Blundell  <Philip.Blundell@pobox.com>

	* nss/getXXbyYY_r.c (do_weak_alias): Remove extra parentheses.

1997-06-11 13:22  Ulrich Drepper  <drepper@cygnus.com>

	* misc/regexp.h (compile): Allow use of macro INIT for variable
	declaration.  Add documentation for INIT.
	Reported by Robert Bihlmeyer <robbe@orcus.priv.at>.

1997-06-11 10:47  Philip Blundell  <Philip.Blundell@pobox.com>

	* sysdeps/unix/sysv/linux/net/if_arp.h: Add two new hardware types.

1997-06-10 11:31  H.J. Lu  <hjl@gnu.ai.mit.edu>

	* sysdeps/powerpc/strlen.s: Use -0x101 instead of 0xfffffeff
	for a signed 16-bit value.

1997-06-07 07:54  H.J. Lu  <hjl@gnu.ai.mit.edu>

	* sysdeps/unix/sysv/linux/powerpc/dl-sysdep.c
	(_dl_sysdep_read_whole_file): Deleted.

	* sysdeps/powerpc/fenvbits.h (__FE_ALL_INVALID): Changed
	to FE_ALL_INVALID.

	* sysdeps/powerpc/fraiseexcpt.c (__FE_INVALID_SOFTWARE):
	Changed to FE_INVALID_SOFTWARE.
	(__FPSCR_STICKY_BITS): Changed to FPSCR_STICKY_BITS.

	* sysdeps/libm-ieee754/s_fmin.c: Fix a typo.

1997-06-07 18:48  H.J. Lu  <hjl@gnu.ai.mit.edu>

	* shlib-versions (.*-.*-linux.*): Set libc to 6.

1997-06-08 15:35  Thorsten Kukuk  <kukuk@vt.uni-paderborn.de>

	* nis/nis_add.c (nis_add): Use nis_leaf_of_r instead of nis_name_of_r.

	* nis/nis_addmember.c (nis_addmember): Fix a lot of pointer errors.
	* nis/nis_clone.c: Likewise.
	* nis/nis_removemember.c (nis_removemember): Likewise.
	* nis/nis_table.c: Likewise.

	* nis/nss_nis/nis-hosts.c: Use addr, not p for inet_pton call.
	* nis/nss_nisplus/nisplus-hosts.c: Likewise.

	* nis/nss_nis/nis-netgrp.c (_nss_nis_setnetgrent): Check for
	group == NULL.

1997-06-08 21:21  Mark Kettenis  <kettenis@phys.uva.nl>

	* login/login.c, login/utmp_daemon.c, login/utmp_file.c,
	login/getutent_r.c, login/utmpname.c: Cleanup `#if _LIBC' and
	`#ifndef _LIBC' fragments.

	* login/programs/utmpd.c: Define DEFAULT_USER.
	(drop_priviliges): Use it.
	(main): Set locale and text domain.

	* login/programs/utmpd-private.h: Declare proc_utmp_eq.
	* login/programs/database.c (proc_utmp_eq): Removed.
	* login/programs/request.c (proc_utmp_eq): Made global.  Only use
	ut_id field if valid.

	* login/utmp_file.c (proc_utmp_eq): Restore patch made by Miles
	Bader that was lost when adding the daemon backend; Only use ut_id
	field if valid.

1997-06-05 23:10  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sysdeps/unix/sysv/linux/Dist: Remove netatalk/atalk.h and
	netinet/icmp.h, add netatalk/at.h.
	* sysdeps/unix/sysv/linux/powerpc/Dist: Remove termios.h.
	* sysdeps/unix/sysv/linux/sparc/Dist: Remove start.c.

1997-06-04 19:22  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* stdlib/testsort.c (compare): Fix parameter types.

1997-06-04 19:05  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* md5-crypt/Makefile (distribute): Fix name of file.

1997-06-04 19:02  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* login/Makefile (utmpd-routines): Remove utmpd again, which is
	already added implicitly through $(others).

1997-06-05 13:43  Fila Kolodny  <fila@filapc.ibi.com>

	* sysdeps/unix/sysv/linux/Makefile (sysdep_headers): Add netipx/ipx.h.

1997-06-05 13:25  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* md5-crypt/md5-crypt.c: Add prototype for __md5_crypt.

1997-06-05 17:08  Ulrich Drepper  <drepper@cygnus.com>

	* string/argz-addsep.c: Correct weak alias.
	Reported by Ben Pfaff <pfaffben@pilot.msu.edu>.

	* locale/setlocale.c (setlocale): Free variable with locale path
	before returning.
	(setname): Don't test for _nl_current[category] being NULL before
	freeing.
	Reported by Ben Pfaff <pfaffben@pilot.msu.edu>.

1997-06-04 12:41  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* manual/intro.texi (XPG): Correct some typos.

	* manual/libc.texinfo (Program Arguments): Menu updated.
	* nis/nis_local_names.c (nis_local_host): Fix pointer errors.

6 files changed, 48 insertions, 35 deletions

diff --git a/elf/Makefile b/elf/Makefile
index ae7dda9638..33d57ed70f 100644
--- a/elf/Makefile
+++ b/elf/Makefile
@@ -40,6 +40,7 @@ distribute	= $(rtld-routines:=.c) dynamic-link.h do-rel.h dl-machine.h \
 extra-libs	 = libdl
 extra-libs-others = $(extra-libs)
 libdl-routines	:= dlopen dlclose dlsym dlvsym dlerror dladdr
+libdl-map	:= libdl.map
 
 before-compile = $(objpfx)trusted-dirs.h
 
diff --git a/elf/dl-lookup.c b/elf/dl-lookup.c
index 294dfb951f..f2ce4c9c3c 100644
--- a/elf/dl-lookup.c
+++ b/elf/dl-lookup.c
@@ -25,10 +25,14 @@
 
 #include "dl-hash.h"
 #include <dl-machine.h>
-#include "../stdio-common/_itoa.h"
+#include <stdio-common/_itoa.h>
 
 #define VERSTAG(tag)	(DT_NUM + DT_PROCNUM + DT_VERSIONTAGIDX (tag))
 
+/* We need this string more than once.  */
+static const char undefined_msg[] = "undefined symbol: ";
+
+
 struct sym_val
   {
     ElfW(Addr) a;
@@ -105,16 +109,10 @@ do_lookup (const char *undef_name, unsigned long int hash,
 	       && sym->st_shndx == SHN_UNDEF))
 	    continue;
 
-	  switch (ELFW(ST_TYPE) (sym->st_info))
-	    {
-	    case STT_NOTYPE:
-	    case STT_FUNC:
-	    case STT_OBJECT:
-	      break;
-	    default:
-	      /* Not a code/data definition.  */
-	      continue;
-	    }
+	  if (ELFW(ST_TYPE) (sym->st_info) > STT_FUNC)
+	    /* Ignore all but STT_NOTYPE, STT_OBJECT and STT_FUNC entries
+	       since these are no code/data definitions.  */
+	    continue;
 
 	  if (sym != ref && strcmp (strtab + sym->st_name, undef_name))
 	    /* Not the symbol we are looking for.  */
@@ -129,7 +127,7 @@ do_lookup (const char *undef_name, unsigned long int hash,
 	      if (verstab != NULL)
 		{
 		  ElfW(Half) ndx = verstab[symidx] & 0x7fff;
-		  if (map->l_versions[ndx].hash != 0)
+		  if (ndx > 2) /* map->l_versions[ndx].hash != 0) */
 		    continue;
 		}
 	    }
@@ -143,7 +141,7 @@ do_lookup (const char *undef_name, unsigned long int hash,
 		     symbol must not simply disappear.  */
 		  if (version->filename != NULL
 		      && _dl_name_match_p (version->filename, map))
-		    return -1;
+		    return -2;
 		  /* Otherwise we accept the symbol.  */
 		}
 	      else
@@ -177,11 +175,14 @@ do_lookup (const char *undef_name, unsigned long int hash,
 	      /* Local symbols are ignored.  */
 	      break;
 	    }
+
+	  /* There cannot be another entry for this symbol so stop here.  */
+	  break;
 	}
 
-      /* If this current is the one mentioned in the verneed entry it
-	 is a bug.  */
-      if (version != NULL && version->filename != NULL
+      /* If this current map is the one mentioned in the verneed entry
+	 and we have not found a weak entry, it is a bug.  */
+      if (symidx == STN_UNDEF && version != NULL && version->filename != NULL
 	  && _dl_name_match_p (version->filename, map))
 	return -1;
     }
@@ -214,7 +215,7 @@ _dl_lookup_symbol (const char *undef_name, const ElfW(Sym) **ref,
       (*ref == NULL || ELFW(ST_BIND) ((*ref)->st_info) != STB_WEAK))
     /* We could find no value for a strong reference.  */
     _dl_signal_error (0, reference_name,
-		      make_string ("undefined symbol: ", undef_name));
+		      make_string (undefined_msg, undef_name));
 
   *ref = current_value.s;
   return current_value.a;
@@ -289,14 +290,16 @@ _dl_lookup_versioned_symbol (const char *undef_name, const ElfW(Sym) **ref,
 				       version->name,
 				       " not defined in file ",
 				       version->filename,
-				       " with link time reference"));
+				       " with link time reference",
+				       res == -2
+				       ? " (no version symbols)" : ""));
     }
 
   if (current_value.s == NULL &&
       (*ref == NULL || ELFW(ST_BIND) ((*ref)->st_info) != STB_WEAK))
     /* We could find no value for a strong reference.  */
     _dl_signal_error (0, reference_name,
-		      make_string ("undefined symbol: ", undef_name,
+		      make_string (undefined_msg, undef_name,
 				   ", version ", version->name ?: NULL));
 
   *ref = current_value.s;
@@ -337,11 +340,10 @@ _dl_lookup_versioned_symbol_skip (const char *undef_name,
       (*ref == NULL || ELFW(ST_BIND) ((*ref)->st_info) != STB_WEAK))
     {
       /* We could find no value for a strong reference.  */
-      static const char msg[] = "undefined symbol: ";
       const size_t len = strlen (undef_name);
-      char buf[sizeof msg + len];
-      memcpy (buf, msg, sizeof msg - 1);
-      memcpy (&buf[sizeof msg - 1], undef_name, len + 1);
+      char buf[sizeof undefined_msg + len];
+      memcpy (buf, undefined_msg, sizeof undefined_msg - 1);
+      memcpy (&buf[sizeof undefined_msg - 1], undef_name, len + 1);
       _dl_signal_error (0, reference_name, buf);
     }
 
diff --git a/elf/dl-reloc.c b/elf/dl-reloc.c
index bec5881d0e..5b22a506da 100644
--- a/elf/dl-reloc.c
+++ b/elf/dl-reloc.c
@@ -68,7 +68,7 @@ _dl_relocate_object (struct link_map *l, struct link_map *scope[], int lazy)
     ELF_DYNAMIC_RELOCATE (l, lazy);
   }
 
-  /* Mark the object so we know ths work has been done.  */
+  /* Mark the object so we know this work has been done.  */
   l->l_relocated = 1;
 
   if (l->l_info[DT_TEXTREL])
diff --git a/elf/dl-version.c b/elf/dl-version.c
index 71eff0d962..f7df9805b3 100644
--- a/elf/dl-version.c
+++ b/elf/dl-version.c
@@ -25,7 +25,7 @@
 #include <string.h>
 #include <assert.h>
 
-#include "../stdio-common/_itoa.h"
+#include <stdio-common/_itoa.h>
 
 
 /* Set in rtld.c at startup.  */
@@ -53,13 +53,13 @@ extern char **_dl_argv;
 
 
 static inline struct link_map *
-find_needed (struct link_map *map, const char *name)
+find_needed (const char *name)
 {
   unsigned int n;
 
-  for (n = 0; n < map->l_nsearchlist; ++n)
-    if (_dl_name_match_p (name, map->l_searchlist[n]))
-      return map->l_searchlist[n];
+  for (n = 0; n < _dl_loaded->l_nsearchlist; ++n)
+    if (_dl_name_match_p (name, _dl_loaded->l_searchlist[n]))
+      return _dl_loaded->l_searchlist[n];
 
   /* Should never happen.  */
   return NULL;
@@ -72,10 +72,10 @@ match_symbol (const char *name, ElfW(Word) hash, const char *string,
 {
   const char *strtab = (const char *) (map->l_addr
 				       + map->l_info[DT_STRTAB]->d_un.d_ptr);
-  ElfW(Addr) def_offset = map->l_info[VERSTAG (DT_VERDEF)]->d_un.d_ptr;
+  ElfW(Addr) def_offset;
   ElfW(Verdef) *def;
 
-  if (def_offset == 0)
+  if (map->l_info[VERSTAG (DT_VERDEF)] == NULL)
     {
       /* The file has no symbol versioning.  I.e., the dependent
 	 object was linked against another version of this file.  We
@@ -87,7 +87,10 @@ no version information available (required by ",
       return 0;
     }
 
-  def = (ElfW(Verdef) *) (map->l_addr + def_offset);
+  def_offset = map->l_info[VERSTAG (DT_VERDEF)]->d_un.d_ptr;
+  assert (def_offset != 0);
+
+  def = (ElfW(Verdef) *) ((char *) map->l_addr + def_offset);
   while (1)
     {
       /* Currently the version number of the definition entry is 1.
@@ -179,7 +182,7 @@ _dl_check_map_versions (struct link_map *map, int verbose)
       while (1)
 	{
 	  ElfW(Vernaux) *aux;
-	  struct link_map *needed = find_needed (map, strtab + ent->vn_file);
+	  struct link_map *needed = find_needed (strtab + ent->vn_file);
 
 	  /* If NEEDED is NULL this means a dependency was not found
 	     and no stub entry was created.  This should never happen.  */
@@ -227,7 +230,7 @@ _dl_check_map_versions (struct link_map *map, int verbose)
   if (def != NULL)
     {
       ElfW(Verdef) *ent;
-      ent = (ElfW(Verdef)  *) (map->l_addr + def->d_un.d_ptr);
+      ent = (ElfW(Verdef) *) (map->l_addr + def->d_un.d_ptr);
       while (1)
 	{
 	  if ((unsigned int) (ent->vd_ndx & 0x7fff) > ndx_high)
diff --git a/elf/libdl.map b/elf/libdl.map
new file mode 100644
index 0000000000..d950382346
--- /dev/null
+++ b/elf/libdl.map
@@ -0,0 +1,7 @@
+GLIBC_2.0 {
+  global:
+    dladdr; dlclose; dlerror; dlopen; dlsym; dlvsym;
+
+  local:
+    *;
+};
\ No newline at end of file
diff --git a/elf/link.h b/elf/link.h
index 0e58996b04..c894540e5e 100644
--- a/elf/link.h
+++ b/elf/link.h
@@ -255,7 +255,7 @@ extern void _dl_receive_error (receiver_fct fct, void (*operate) (void *),
 
 /* Helper function for <dlfcn.h> functions.  Runs the OPERATE function via
    _dl_catch_error.  Returns zero for success, nonzero for failure; and
-   arranges for `dlerror' to return the error details.  
+   arranges for `dlerror' to return the error details.
    ARGS is passed as argument to OPERATE.  */
 extern int _dlerror_run (void (*operate) (void *), void *args);